Attention-deficit/hyperactivity disorder genomics: update for clinicians.

Attention deficit, hyperactivity disorder (ADHD) is familial and highly heritable. Several candidate genes involved in neurotransmission have been identified, however these confer minimal risk, suggesting that for the most part, ADHD is not caused by single common genetic variants. Advances in genotyping enabling investigation at the level of the genome have led to the discovery of rare structural variants suggesting that ADHD is a genomic disorder, with potentially thousands of variants, and common neuronal pathways disrupted by numerous rare variants resulting in similar ADHD phenotypes.

The impact of mood disorders and their treatment on the pregnant woman, the fetus, and the infant.

Treatment of mood disorders in pregnant or nursing women can carry significant risks for the mother and the developing infant. For patients and physicians, it may be difficult to obtain current information to make the proper decisions regarding pharmacologic and alternative treatments. Thus, this paper discusses the risks and benefits of pharmacologic treatment and the risks of not treating depression and bipolar disorder in the pregnant woman.